Question

a car running at a speed of 45 kilometers per hours to reaches ghaziabad from delhi in 20 minutes. if the distance between delhi and ghaziabad is shown on a map by a distance of 2.5 cms draw a graphic scale for this map and calculate the R.F also

Answer 1

a car running at a speed of 45 kilometers per hours to reaches ghaziabad from delhi in 20 minutes. if the distance between delhi and ghaziabad is shown on a map by a distance of 2.5 cms draw a graphic scale for this map and calculate the R.F also

Speed = 45 km/hr

Time = 20 min = 20/60 = 1/3 hr

Distance = Speed * time

=> Distance = 45 * 1/3 = 15 km

Distance shown by 2.5 cm

2.5 cm on map = 15km

=> 1 cm on map = 6 km

=> 1 cm on map = 600000 cm

Scale on Map used

1 : 600000